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Sensor axlebox-bearing unit for supporting a railway axle and associated sensor cover

A technology for axle box bearings and sensors, which is applied to bearing components, shafts and bearings, bearings for rotational motion, etc., and can solve problems such as difficult assembly of sensor modules

Active Publication Date: 2016-05-11
AB SKF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In these cases, it is very difficult to assemble the sensor modules in the area of ​​the axles and / or in the axlebox bearing units, and even more so to maintain them, since the train vehicles are generally set on the ground, and the operators have to work in unseen and space-constrained positions. work under limited conditions

Method used

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  • Sensor axlebox-bearing unit for supporting a railway axle and associated sensor cover
  • Sensor axlebox-bearing unit for supporting a railway axle and associated sensor cover
  • Sensor axlebox-bearing unit for supporting a railway axle and associated sensor cover

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Embodiment Construction

[0012] refer to figure 1 and 2 , numeral 1 generally denotes a sensored axlebox bearing unit for supporting a train axle 2, comprising an axlebox 3, adapted to be fixed in a fixed position under a train vehicle, known but not shown for simplicity, and held at Rolling bearings 4 in the axlebox 3, in turn comprising an inner ring 5 adapted in use to accommodate the train wheel axle 2 so as to be rotatable relative to the axlebox 3 about a common axis of symmetry A, and an outer ring 6 fixedly fitted in the axlebox 3 , and a plurality of rolling elements 7, arranged between the rings 5 ​​and 6; in the example shown, the ring 5 is manufactured using two coupled annular parts 5b, 5c, and is integrally fixed to the axle 2, which in use rotates about axis A and terminates on opposite sides thereof with respective wheels 8 (for simplicity only one side and respective wheels 8 are shown); It is the inner side facing the train vehicle.

[0013] The axle box bearing unit 1 also includ...

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Abstract

An axlebox-bearing unit (1) for a railway axle (2), includes a stationary axlebox (3); a rolling bearing (4) for supporting the axle; and a sensor unit (10) including a sensor module (11) and a connection plug (13); wherein a rear cover (17) of the axlebox-bearing unit is made in the shape of two independent ring stretches (20,21) adapted to couple in use with the axle (2); a first ring stretch (20) is defined by a semicircular profile flange (25) and a second ring stretch (21) is defined by a semicircular profile box (27) which is hollow inside and has towards the axle a circumferential opening (33); wherein the sensor module (11) is pre-assembled within the box (27) carried radially on the inside by a radially outer cylindrical lateral wall (28) of the box (27) and the connection plug (13) is integrally carried, radially on the outside, by the box (27) and is connected to the sensor module (11) by means of an electric cable (34) arranged within the box (27).

Description

technical field [0001] The invention relates to an axle box bearing unit with a sensor for supporting a train axle. The invention also relates to a related cover with sensors. Background technique [0002] As is known, for example from US3741614, a train vehicle is supported by several train axles or only axles to which a pair of wheels are locked; each end of the axle is supported by an axlebox bearing unit comprising Axleboxes and rolling bearings secured to railroad cars with suitable suspensions. Therefore, in this type of axle, the axle box bearing unit of each axle is arranged on the outer side with respect to the wheel, ie facing the outer side of the train vehicle, so that the axle box bearing unit can be easily accessed from the outside of the vehicle. [0003] It is also known, for example from WO 2007 / 065413, that the outer ring of the rolling bearing is fitted on a housing element of the axlebox, substantially annular and fixed in use, which supports towards th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C19/38F16C41/00
CPCF16C19/38F16C41/00B61F15/26F16C33/7886F16C35/067F16C41/007F16C19/386F16C19/52F16C2326/10
Inventor A·罗伯蒂F·索齐
Owner AB SKF